Factoring a Difference of Perfect Squares | Lulumath

When factoring, special cases can come up. Factoring a difference of perfect squares is an example that we'll cover in this video.

IMPORTANT TIMESTAMPS:
0:00 Introduction and background knowledge
0:22 Binomial expansion to explain differences of perfect squares
1:59 Three conditions for a difference of perfect squares
3:18 Example 1
6:07 Example 2
7:47 Note: Square rooting monomials with exponents
10:01 Example 3
12:30 Non-example #1
13:40 Non-example #2

Although it tends to be an easier example of factoring, it's important to understand how and why it works and how it's related to other types of factoring. We also need to know how to identify a difference of perfect squares. It all comes down to getting the outer and the inner terms to cancel. This video will explain it all!

BACKGROUND INFORMATION:

FOLLOW-UP VIDEO:

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